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This document is archived and information here might be outdated. Recommended version. |
IEnvelope.ExpandZ Method (ArcObjects .NET 10.8 SDK)
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This document is archived and information here might be outdated. Recommended version. |
Moves the Z attribute of the sides toward or away from each other.
[Visual Basic .NET]
Public Sub ExpandZ ( _
ByVal dz As Double, _
ByVal asRatio As Boolean _
)
[C#]
public void ExpandZ (
double dz,
bool asRatio
);
[C++]
HRESULT ExpandZ(
double dz,
VARIANT_BOOL asRatio
);
[C++] Parameters dz
dz is a parameter of type double asRatio
asRatio is a parameter of type bool
ExpandZ scales the Z attributes of the Envelope. If asRatio = FALSE, the scaling is additive (ZMin = ZMin - dz, ZMax = ZMax + dz). If asRatio = TRUE, the scaling is multiplicative (ZMin = ZMin - dz*Depth/2, ZMax = ZMax + dz*Depth/2)
public static void TestExpandZ()
{
const double ScaleFactor = 1.986;
IEnvelope2 envelope = GetEnvelopeGeometry() as IEnvelope2;
double beforeXMin, beforeXMax, beforeYMin, beforeYMax;
envelope.QueryCoords(out beforeXMin, out beforeYMin, out beforeXMax, out beforeYMax);
double beforeZMin, beforeZMax;
envelope.QueryZCoords(out beforeZMin, out beforeZMax);
envelope.ExpandZ(ScaleFactor, true);
double afterXMin, afterXMax, afterYMin, afterYMax;
envelope.QueryCoords(out afterXMin, out afterYMin, out afterXMax, out afterYMax);
double afterZMin, afterZMax;
envelope.QueryZCoords(out afterZMin, out afterZMax);
//beforeXMin = -8.604
//beforeXMax = 1.396
//beforeYMin = -12.117
//beforeYMax = -2.117
//beforeZMin = -12.902
//beforeZMax = -2.902
//afterXMin = -8.604
//afterXMax = 1.396
//afterYMin = -12.117
//afterYMax = -2.117
//afterZMin = -17.829
//afterZMax = 2.026
}